15 mm plano convex glass large Convex Lens are ideal for focusing parallel rays to one point, and can be used in a variety of applications. Plano-convex lenses can converge the collimated beam on the back focus, and can also turn a point light source into a collimated beam. Plano-convex lenses are usually used to focus parallel light. The front and rear surfaces of the plano-convex lens are asymmetric, so it can effectively reduce spherical aberration, especially in applications where the object image distance is not equal. The best application is to place an object at infinity (that is, as parallel light incident) and image in the focal plane. The convex surface of the lens should be placed facing the object direction.The Plano Convex Lens manufactured by our company has been sold to many countries and regions in the world and has won a good reputation in the international optical industry.
Material: K9, BK7, FS, UVFS, CaF₂, ZnSe
Diameter:3mm-200mm±0.05mm
Center Thickness Tolerance:±0.05mm
Lens Alignment Error:≤3min
Surface Accuracy:λ/ 10 @
Surface Quality:40/20. 60/40. 80/60
Effective Caliber: 90%
Example with BK7 material：These N-BK7 Plano-Convex lenses are available uncoated or with one of five antireflection coatings (-A, -AB, -B, -C, or -D), which reduces the amount of light reflected from each surface of the lens (see the Selection Guide table below for coating option). Since approximately 4% of the incident light is reflected at each surface of an uncoated substrate, the application of an AR coating improves transmission, which is important in low-light applications, and prevents the undesirable effects (e.g., ghost images) associated with multiple reflections. Having optics that are AR coated on both surfaces is particularly desirable for applications utilizing multiple optical elements. Please see the Graphs tab for additional coating information.
| N-BK7 Plano-Convex Lens Selection Guide | 
|
| Coating name | wavelength band |
| Uncoated | Uncoated |
| A Coating | 350nm-700nm |
| AB Coating | 400nm-1100nm |
| B Coating | 650nm-1050nm |
| C Coating | 1050-1700nm |
| D Coating | 1650nm-3000nm |
Other series products：
quartz window Spectroscopic prism True zero-order Calcium Fluoride Window Optical Lens
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